
Best eSIM for Japan in 2026: Complete Comparison & Guide
Discover the best eSIM plans for traveling to Japan. Detailed comparison with real prices, exclusive promo codes, and recommendations by travel profile.

197 plans found · Last update:
| # | Plan | Data | Duration | Price/GB | Promo code | Price |
|---|---|---|---|---|---|---|
1 | Japan 1GB 7Days Esimflare | 1.00GB | 7 days | $2.70 | -10% | $2.70$3.00 |
2 | Japan 500MB 7Days Esimflare | 0.49GB | 7 days | $5.51 | -10% | $2.70$3.00 |
3 | Japan 100MB 7Days Esimflare | 0.10GB | 7 days | $27.00 | -10% | $2.70$3.00 |
4 | Japan 3GB 15Days Esimflare | 3.00GB | 15 days | $1.02 | -10% | $3.06$3.40 |
5 | Japan 1GB 7Days (nonhkip) Esimflare | 1.00GB | 30 days | $2.70 | -10% | $2.70$3.00 |
6 | Japan 1GB 7Days (IIJ) Esimflare | 1.00GB | 30 days | $2.70 | -10% | $2.70$3.00 |
7 | Japan 3GB 15Days (IIJ) Esimflare | 3.00GB | 30 days | $1.02 | -10% | $3.06$3.40 |
8 | China mainland & Japan & South Korea 1GB 7Days Esimflare | 1.00GB | 7 days | $4.14 | -10% | $4.14$4.60 |
9 | Japan 3GB 30Days (IIJ) Esimflare | 3.00GB | 30 days | $1.08 | -10% | $3.24$3.60 |
10 | Japan 3GB 30Days Esimflare | 3.00GB | 30 days | $1.08 | -10% | $3.24$3.60 |
11 | Japan 500MB/Day Esimflare | 2.44GBLimite journalière: 500 MB/jour | 5 days | $1.84 | -10% | $4.50$5.00 |
12 | Japan 500MB/Day (IIJ) Esimflare | 2.44GBLimite journalière: 500 MB/jour | 5 days | $1.84 | -10% | $4.50$5.00 |
13 | Japan 500MB/Day (nonhkip) Esimflare | 2.44GBLimite journalière: 500 MB/jour | 5 days | $1.92 | -10% | $4.68$5.20 |
14 | Japan 500MB/Day Esimflare | 0.49GBLimite journalière: 500 MB/jour | 1 days | $5.51 | -10% | $2.70$3.00 |
15 | Japan 500MB/Day (IIJ) Esimflare | 0.49GBLimite journalière: 500 MB/jour | 1 days | $5.51 | -10% | $2.70$3.00 |

Developer and digital nomad, I lived between Canada and the United States before continuing to explore the world. After struggling with internet connectivity abroad one too many times, I created eSIM Planet to compare plans clearly and honestly. Every article is carefully written and reviewed to save you time and money.
Select the Esimflare plan that fits your needs for your trip to Japan.
Click "View offer" to be redirected to the official Esimflare website.
In the "Promo code" field, enter exactly ESIMP to get 10% off.
Complete the purchase and receive your QR code by email. Scan it to activate your Japan eSIM.
Esimflare is one of the most reliable eSIM providers for Japan. With 197 plans available from $2.70, you'll find the perfect offer for your stay.
Yes, code ESIMP is valid and verified for Japan in 2026. It gives you 10% off all Esimflare plans for Japan.
Esimflare partners with top local carriers in Japan to provide optimal 4G/LTE coverage. In major cities, you often get 5G depending on your device.
Esimflare plans for Japan start from $2.70. With code ESIMP, you get an additional 10% discount.
Yes, you can install your Esimflare eSIM before departure and activate it upon arrival in Japan. Activation is instant once connected to the local network.
After purchase, you'll receive a QR code by email. Scan it in your phone settings (Settings > Cellular > Add eSIM Plan on iPhone). Activation takes less than 5 minutes.
Looking for a Esimflare eSIM for your trip to Japan in 2026? You're in the right place. eSIM Planet presents all Esimflare plans available for Japan, with the best prices and exclusive promo code ESIMP for 10% off.
Esimflare is known for quality service and network coverage in Japan. Whether traveling for tourism or business, Esimflare plans keep you connected without exorbitant roaming fees from your home carrier.
The advantage of choosing a Esimflare eSIM for Japan? Instant activation, transparent prices from $2.70, and the ability to keep your home number. No need to search for a SIM shop at the airport or wait for delivery.